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Grantham, ON

UV Report

UV Index 1 2 3 4 5 6 7 8 9 10 11+
Definition Low Moderate High Very High Extreme

Most Recent UV Observation:

Updated:
2 Low

This is the latest reading for this area.

  • Minimal sun protection required for normal activity
  • Wear sunglasses on bright days. If outside for more than one hour, cover up and use sunscreen
  • Reflection off snow can nearly double UV strength. Wear sunglasses and apply sunscreen

Expected Max UV Observation:

Updated:
4 Moderate

This is today's expected maximum UV reading, taking today's weather into consideration.

  • Take precautions - cover up, wear a hat, sunglasses and sunscreen especially if you will be outside for 30 minutes or more
  • Look for shade near midday when the sun is strongest
Today's UV Readings

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